My house is on piers with a ¾” subfloor. I would like to install a floating laminate finished floor. Do I have to put down cement backerboard first, or can I just use foam underlayment under the laminate flooring? -Ralph
Cement backerboard is mainly used under tile to provide a stable subfloor that adheres well to thin-set tile adhesive. As long as your existing subfloor is:
- Firm and in good shape.
- Well attached to the joists.
- Level, with no uneven or low spots.
Then you should be fine using just the foam underlayment on your existing subfloor before installing laminate flooring.
Good luck with your project,
- How to Level a Subfloor (video)
- How to Install Laminate Flooring (video)
- How to Install Laminate Flooring Over a Tile Floor (article)
- Carpet and Laminate Flooring for Your Home (video)
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